OCPRF100 MP Server System Technical Product Specification

Revision 1.0

 

 

 

 

Drive Fault

 

 

 

 

 

LVD/SE Active

 

 

 

 

 

Indication

 

 

 

 

 

Terminators

 

 

 

 

 

Support

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Public

 

 

 

 

 

 

 

 

Power

 

 

SCA2 Connectors

I2C BUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCSI Interface

 

 

 

 

 

 

 

 

 

 

CPU Unit

 

 

 

 

with LVD/SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Narrow SCSI Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial

 

 

Private I2C

 

 

 

 

Floppy

 

 

LVDS SCSI Connector to Host

EEPROM

 

 

Temperature

 

 

 

 

Connector

 

 

 

 

Controller

 

 

 

 

Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 8-2: Functional Block Diagram

8.2.1Hot-swap Connectors

The backplane provides two hot-swap SCA-2 right angle connectors, which provide power and SCSI signals using a single connector. Each SCSI drive attaches to the backplane using one of these connectors.

8.2.2SCSI Interface

There is one LVDS SCSI channel on the backplane. The SCSI interface on the backplane provides the required additional circuitry between the SCSI bus and the microcontroller (containing the intelligence for the backplane), which allows the microcontroller to respond as a SCSI target. This is implemented using a Symbios Logic* 53C80S SCSI interface chip (or equivalent).

8.2.3LVD/SE Active Termination

The LVD/SE active terminators provide SCSI-3 compliant termination for the backplane end of the SCSI bus. It is assumed that the other end of the SCSI segment is properly terminated as required by the SCSI-3 specification.

8.2.4Power Control

Power control on the backplane supports the following features.

92